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Finding the Fourth Proportional to 503,280.50, 694,531.95 and 276,930.86

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Solution

The fourth proportional to 503,280.50, 694,531.95 and 276,930.86 is: 382,167.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,280.50 : 694,531.95 = 276,930.86 : x
  2. Step 2: Convert to fraction form
    503,280.50/694,531.95 = 276,930.86/x
  3. Step 3: Cross multiply
    503,280.50x = 694,531.95 × 276,930.86
  4. Step 4: Simplify right side
    503,280.50x = 192,337,330,210.98
  5. Step 5: Solve for x
    x = 192,337,330,210.98/503,280.50
  6. Step 6: Final answer
    x = 382,167.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.